In this final quotation, St. Teresa begins to describe what the soul’s new life is like after the experience of Union. Other traditions have their own way of talking about the change that comes through unitive experience – Self-Realization, Buddha Nature, “selfless-self,” etc. The primary characteristic of the new, transformed self, is that it operates without a concern for fulfilling personal self-will. It lives for the Ultimate Good – the “will of God” – and is at peace, unconcerned with obtaining personal gain from anything in the world.
“As we are saying, then, this little butterfly has now died, full of joy at having found rest, and within her lives Christ. Let us see what her new life is like, and how different it is from her earlier one, for it is by the effects which result from this prayer that we shall know if what has been said is true. As far as I can understand, the effects are these.
First, there is a self-forgetfulness which is so complete that it really seems as though the soul no longer existed…”
I will leave the rest for you to explore in the Interior Castle.